Which method should I use (open/close vessel) for digestion of Phyllanthus emblica juice to determine metals Cr Cd Hg As Fe in ppb level by ICP-OES?

Phyllanthus emblica juice contains small amount of sugar as well. What are the major precautions to be taken while digestion of herbal samples and determine the concentration of metals in ppb...

18 October 2014 2,350 4 View